"Old field succession has commonly been observed in the Piedmont region of the eastern United States. It occurs when a farmer stops plowing a field, the field is neglected, and, if left alone long enough, it returns to the native climax community. What type of succession is going on?"

The large ground finch obtains food by cracking seeds. what is its short, strong beak an example? a) tendency toward perfection b) adaptation of a species over time c) selective use and disuse of an organ over time d) scarcity of recourses

List two limitations of natural selection

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy